IL2RA and myeloid sarcoma: A GWA study for MS susceptibility genes performed by The International Multiple Sclerosis Genetics Consortium [6] highlighted two SNPs in the IL-2RA gene: rs12722489 (Odds Ratio (OR) for minor allele  = 0.80; 95% confidence interval (c.i.)= 0.74–0.86, P = 2.96×10−8) and rs2104286 (OR = 0.84; 95% c.i. = 0.79–0.90; P = 2.16×10−7).